Offline embossed cigarette paper making method and offline embossed cigarette paper

Abstract

The invention discloses an offline embossed cigarette paper making method. According to the method, tobacco extracts are used as printing materials, and a printing material transfer system is used for transferring the tobacco extracts to specific pattern protrusions of an embossing plate; printing and embossing are conducted on common cigarette paper simultaneously to obtain colored cigarette paper with concave-convex lines cigarette paper matched with the lines. By means of the method, the process is simplified, the production effect is improved, and the manufacturing cost and the equipment cost are lowered; meanwhile, the defect that the qualified rate of products is influenced due to manufacturing by several times is overcome; the problems that printed patterns are irregular due to the fact that the cigarette paper has good water permeability and liquid-state printing oil adopted for conventional printing is prone to diffusion, and printing oil is hard to coat on a printing plate due to the fact that the viscosity of the printing oil is improved purely are solved.

Description

technical field [0001] The invention relates to a cigarette wrapping material and its production process, in particular to a cigarette paper with specific three-dimensional figures and patterns, and a method for producing the cigarette paper. Background technique [0002] Traditional cigarette paper mainly plays the role of wrapping shredded tobacco and directly participates in the burning of cigarettes. At the same time, cigarette paper can also improve the appearance of cigarettes. Therefore, cigarette paper plays an important role in the smoking quality of cigarettes and the sensory impression that cigarettes give consumers. influences. [0003] Conventional cigarette paper is made of white whole wood pulp fibers, mostly with horizontal or vertical threads on a white background, resulting in serious homogeneity in the appearance of cigarettes and poor identification of cigarette types. With the development of the paper industry and packaging industry, in order to enable ...

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Problems solved by technology

[0004] Chinese patent CN101886355B discloses a method of using natural tobacco extract and food coloring as the raw material basis for dyeing, and performing double-sided sizing and dyeing by dip coating to prepare colored cigarette paper; but the cigarette paper prepared by this technology only changes The overall color of the cigarette paper, unable to reflect a specific pattern or pattern on the cigarette paper

[0005] Chinese patent 201310403562.6 "A Cigarette Paper with Pattern and Fragrance and Its Preparation Method" solves the problem that there is no specific pattern on the cigarette paper. The glue is mixed to prepare a colloidal solution, and the colloidal solution is printed as an ink, and the predetermined pattern is printed on the paper base of the cigarette paper to obtain a cigarette paper with a pattern and flavor; in addition, the application also provides a preparation method of the cigarette paper, A certain amount of vegetable gum is added to the tobacco flavor and fragrance, fully emulsified by a colloid mill, and the colloid solution is used as an ink for printing, and the predetermined pattern is printed on the paper base of the cigarette paper, and after subsequent processing, the embossing roller is used to dry Embossed directly after drying to make patterned and flavored cigarette paper

[0006] But this method has several deficiencies. First of all, in order to obtain a specific pattern on the cigarette paper in the above method, the cigarette paper is dried after the printing is completed, and then it is embossed with an embossing roller. In practical application, this method needs to set up the printing process and embossing process regulations, as well as the corresponding equipment and printing plates. The investment in printing plate equipment is relatively large. If mass production can still effectively control costs, if experimental small batches The cost of manufacturing is too high, which is a deficiency in cost; there are also technical problems. The above-mentioned two-stage production method will cause complicated processes, high difficulty in positioning and calibration of printed patterns and embossed patterns, and the product qualification rate is not ideal; Secondly, the main raw material of cigarette paper is bleached hemp pulp, and some bleached wood pulp or straw pulp is also mixed with it, which has better water permeability. In conventional printing, the printing plate is usually soaked in an ink tank with liquid ink to make it stained. The ink is then transferred to the paper. Printing on cigarette paper in this way, the ink is easy to spread, which will cause the printed pattern to be irregular. If the viscosity of the ink is increased, the printing plate will not be able to be stained with ink at all. , the printing failed, so it is necessary to improve the adaptability of the ink and the printing method. The above-mentioned document method only mentions the use of vegetable glue as the ink carrier, and does not describe the specific improvement of the printing method. The effect of printing on cigarette paper is not satisfactory; moreover, in the above method, printing and embossing are carried out separately, and the two are not formed at one time. After the cigarette paper with printed patterns is dried, the ink has been fixed on the paper , the toughness of the paper is reduced, and the embossing operation with a large deformation at this time will inevitably cause the foreseeable consequences of ink shedding and paper brittleness. There are many uncertainties in terms of stability and product quality

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